Back to overview

Spectrally intense terahertz source based on triangular Selenium.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Publication date 2015
Author Shalaby Mostafa, Hauri Christoph P,
Project A bright and coherent keV x-ray source based on efficient high-order harmonic generation
Show all

Original article (peer-reviewed)

Journal Scientific reports
Volume (Issue) 5
Page(s) 8059 - 8059
Title of proceedings Scientific reports
DOI 10.1038/srep08059


The intensity of a nonlinear terahertz (THz) source is primarily given by its spectral density. In this letter, we introduce triangular Selinium (Se) as a novel THz emitter and show numerically its superior properties to the currently used crystals for intense THz generation. The excellent phase matching enables the applicability of elongated Se crystals which results in very high spectral flatness and broad THz bandwidth (0.5-3.5 THz), high conversion efficiency and THz pulse energy.The spectral THz density produced by optical rectification in Selenium exceeds those from contemporary crystal-based THz sources.